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  • Title: Saccharothrix lopnurensis sp. nov., a filamentous actinomycete isolated from sediment of Lop Nur.
    Author: Li YQ, Liu L, Cheng C, Shi XH, Lu CY, Dong ZY, Salam N, An DD, Li WJ.
    Journal: Antonie Van Leeuwenhoek; 2015 Oct; 108(4):975-81. PubMed ID: 26294110.
    Abstract:
    A novel actinomycete strain, designated YIM LPA2h(T), was isolated from a sediment sample collected from Lop Nur, Xinjiang Uygur Autonomous Region, North-West China. The taxonomic position of strain YIM LPA2h(T) was investigated by a polyphasic approach. The morphological and chemotaxonomic properties of the isolate were in accordance with the members of the genus Saccharothrix. The 16S rRNA gene sequence of the strain showed highest similarities to Saccharothrix yanglingensis (98.6 %), Saccharothrix longispora (98.4 %) and Saccharothrix hoggarensis (98.3 %). However, the DNA-DNA hybridization values between the new isolate YIM LPA2h(T) and S. yanglingensis, S. longispora and S. hoggarensis were significantly below 70 %. Strain YIM LPA2h(T) was found to contain meso-diaminopimelic acid as diagnostic diamino acid. The major sugars in whole-cell hydrolysates were rhamnose, galactose, mannose, glucose and fructose. The major polar lipids were identified as phosphatidylethanolamine, phosphatidylhydroxylethanolamine, diphosphatidylglycerol, phosphatidylinositol and phosphatidylinositol mannoside. The predominant respiratory menaquinones were MK-9 (H4) and MK-10 (H4). The major fatty acids were C17:1 ω8c (15 %), iso-C15:0 (12 %), anteiso-C15:0 (12 %) and summed feature 3 (C16:1 ω6c/C16:1 ω7c, 10 %). The genomic DNA G+C content of strain YIM LPA2h(T) was determined to be 75 mol %. The genotypic and phenotypic results suggest that strain YIM LPA2h(T) represents a novel species of the genus Saccharothrix, for which the name Saccharothrix lopnurensis sp. nov. is proposed. The type strain is YIM LPA2h(T) (=CGMCC 4.7246(T)=KCTC 39545(T)).
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